SBraille: A New Braille Input Method for Mobile Devices

  • Soonyong Lee
  • Ji Su Park
  • Jin Gon ShonEmail author
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 474)


There are not many accessibility technologies to input braille in the mobile devices for the visually impaired. We have studied three conventional methods to input braille in mobile devices and, as a result of our study, we propose SBraille, a new braille input method using swiping gesture for mobile devices. In order to input a 6-dot Braille letter using SBraille, six dots are divided into three parts with two dots. Each part can be one of the patterns: ‘●○’, ‘○●’, ‘●●’, and ‘○○’. The first two patterns can be represented by tapping left side and right side, respectively. The last two patterns by swiping upward and swiping downward, respectively. The most important advantage of the SBraille method is that the visually impaired can input braille with only one hand, so that they can use the other hand for another use, e.g., holding the cane. Other advantages of SBraille and its comparative analysis with other braille input methods (Braille Keyboard, ThaiBraille, and MBraille) are also explained in the paper.


Braille Braille input methods Mobile braille Touchscreen Soft braille keyboard 


  1. 1.
    William, G., Eelke, F.: Accessible touchscreen technology for people with visual impairments: a survey. J. ACM Trans. Access. Comput. (TACCESS) 10(1), 256–290 (2016)Google Scholar
  2. 2.
    Nektarios, P.: Mobile accessibility tools for the visually impaired. Ph.D. thesis, NY University, NY (2012)Google Scholar
  3. 3.
    Caleb, S., James, C., Brian, F., Gregory, A., Mario, R.: An evaluation of brailletouch: mobile touchscreen text entry for the visually impaired. In: 14th International Conference on Human-Computer Interaction with Mobile Devices and Services Companion (MobileHCI), pp. 155–156. ACM, New York (2012)Google Scholar
  4. 4.
    Mrim, A., Srinivas, S.: SingleTapBraille: developing a text entry method based on braille patterns using a single tap. In: 11th International Conference on Future Networks Communications (FNC), pp. 248–255. Elsevier B.V., Amsterdam (2016)Google Scholar
  5. 5.
    Nahar, L., Jaafar, A., Ahamed, E., Kaish, A.B.: Design of a Braille learning application for visually impaired students in Bangladesh. J. RESNA Assist. Technol. 27(3), 172–182 (2015)CrossRefGoogle Scholar
  6. 6.
    Korea Blind Family Association. Accessed 5 Feb 2017
  7. 7.
    Sergio, M., Cristian, B., Matteo, B.: TypeInBraille: a braille-based typing application for touchscreen devices. In: 13th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2011), pp. 295–296. ACM, New York (2011)Google Scholar
  8. 8.
    Hong, W.P.: Study on the ASCII code in the side of the transmission efficiency in data communications. J. Korea Inst. Electron. Commun. Sci. (Electron. Commun.) 6(5), 657–664 (2011)Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Department of e-Learning, Graduate SchoolKorea National Open UniversitySeoulSouth Korea
  2. 2.National Center of Excellence in SoftwareChungnam National UniversityDaejeonSouth Korea

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